Sort by:
Publication Type:
Open access:
Publication Date:
Periodicals:
Search results
Online since: October 2014
Authors: Gai Fei Peng, Shuo Wang, Ting Li
Mechanical properties of RAC was inferior to that of NAC, and treated RA by sulfuric acid solution could improve the mechanical properties.
Many studies [1~9] showed that, attached mortar is the most important factor affecting the properties of RA.
Furthermore, influence of defects on mechanical properties were evaluated.
Chinese Standard for test method of mechanical properties on ordinary concrete.
(3) Attached mortar had a huge influence on mechanical properties of RAC at a low W/B ratio, and gravel damage is a notable factor on mechanical properties of RAC at a high W/B ratio
Many studies [1~9] showed that, attached mortar is the most important factor affecting the properties of RA.
Furthermore, influence of defects on mechanical properties were evaluated.
Chinese Standard for test method of mechanical properties on ordinary concrete.
(3) Attached mortar had a huge influence on mechanical properties of RAC at a low W/B ratio, and gravel damage is a notable factor on mechanical properties of RAC at a high W/B ratio
Online since: February 2018
Authors: Rudeerat Suntako
Therefore, the size of ZnO affects to properties of the final rubber product.
Cure Characteristics and Mechanical Properties.
Cure Characteristics and Mechanical Properties.
The influence of nZnO on the mechanical properties is also showed in Table 1.
Cure characteristics, mechanical properties and swelling value of the rubber stopper.
Cure Characteristics and Mechanical Properties.
Cure Characteristics and Mechanical Properties.
The influence of nZnO on the mechanical properties is also showed in Table 1.
Cure characteristics, mechanical properties and swelling value of the rubber stopper.
Online since: February 2015
Authors: Safian Sharif, Mohd Tanwyn Mohd Khushairi, Jaafar Sidek Mohd Ani
atanwyn@gmi.edu.my, bsafian@fkm.utm.my,cjaafar@kktmbp.edu.my
Keywords: Rapid tooling; Epoxy; Injection mould; Mechanical properties; Fillers.
In this review, various filler types and several mechanical properties were compiled based on published literatures.
The performance characteristics that were evaluated include mechanical and physical properties as shown in Table 2.
This is dependent on type of fillers and adhesion between fillers and epoxy,which are the factors in improving tensile strength value [11].
Improving mechanical and thermal properties will produce better moulded parts in terms of dimensional stability and strength.
In this review, various filler types and several mechanical properties were compiled based on published literatures.
The performance characteristics that were evaluated include mechanical and physical properties as shown in Table 2.
This is dependent on type of fillers and adhesion between fillers and epoxy,which are the factors in improving tensile strength value [11].
Improving mechanical and thermal properties will produce better moulded parts in terms of dimensional stability and strength.
Online since: March 2008
Authors: Li Jun Yang, Yang Wang
Affected Characteristics Analysis of the Pulsed Laser Forming
of Metal Sheet
Lijun Yang1,a
and Yang Wang
1
1
Department of Mechanical Manufacturing and Automation,
Harbin Institute of Technology, Harbin, China
a
yljtj@hit.edu.cn
Keywords: Pulsed laser forming, Heat-affected zone (HAZ), Pulse parameter, Hardness
Abstract.
Through the analysis of the fundamental theory of pulsed laser affected, this paper shows the affected characteristics of metal sheet with pulsed laser forming.
The pulse parameters are the important influencing factors in the pulsed laser forming.
Therefore, this work demonstrates the changes in microstructure and mechanical properties of stainless steel 1Cr18Ni9 by Nd:YAG pulsed laser forming.
In the pulsed laser forming, the overlapping spot is the most influential factors for the interactive time and energy.
Through the analysis of the fundamental theory of pulsed laser affected, this paper shows the affected characteristics of metal sheet with pulsed laser forming.
The pulse parameters are the important influencing factors in the pulsed laser forming.
Therefore, this work demonstrates the changes in microstructure and mechanical properties of stainless steel 1Cr18Ni9 by Nd:YAG pulsed laser forming.
In the pulsed laser forming, the overlapping spot is the most influential factors for the interactive time and energy.
Online since: May 2012
Authors: You Hong Zhang, Qian Zhang, Xin Long Chang, Shi Ying Zhang, Chun Guo Yue, Wan Lei Liu
Degradation of mechanical properties of electric explosive device fuse-head was serious in different temperature and humidity environments.
The explosive broken and corrosion damage on lead induced by temperature and humidity aging were the main factors affecting the firing probability.
The temperature and humidity are serious environmental factors affecting the structure of electric explosive device.
Fig.1 Equipments for producing aging damage Results and discussion After the procedures of accelerated aging, there produced a mount of corrosion damage speckle on the surface of the specimens and the coatings surface properties were also affected by hygrothermal aging.
After the procedures of accelerated aging, there produced a mount of corrosion damage speckle on the surface of the specimens and the coatings surface properties were also affected.
The explosive broken and corrosion damage on lead induced by temperature and humidity aging were the main factors affecting the firing probability.
The temperature and humidity are serious environmental factors affecting the structure of electric explosive device.
Fig.1 Equipments for producing aging damage Results and discussion After the procedures of accelerated aging, there produced a mount of corrosion damage speckle on the surface of the specimens and the coatings surface properties were also affected by hygrothermal aging.
After the procedures of accelerated aging, there produced a mount of corrosion damage speckle on the surface of the specimens and the coatings surface properties were also affected.
A Preliminary Study on Class F Fly Ash-Based Geopolymers Formed by Pressure as Acid-Resisting Bricks
Online since: July 2012
Authors: Shao Hua Shen, Zheng Hong Wang, Mei Xun Peng
Class F fly ash-based geopolymers formed by pressure were prepared, and the preparation factors effecting on properties especially mechanical strength were investigated and optimized.
Curing conditions The preparation crafts of the fly ash-based geopolymer pastes formed by pressure(FAGP) mean all factors affecting the performances of the geopolymer specimens.
All factors are divided into 3 kinds: raw materials factors, forming factors and curing factors.
Properties as acid-resisting bricks 2.2.1.
Mechanical strength As discussed before, the CS of the FAGP alters with the preparation factors.
Curing conditions The preparation crafts of the fly ash-based geopolymer pastes formed by pressure(FAGP) mean all factors affecting the performances of the geopolymer specimens.
All factors are divided into 3 kinds: raw materials factors, forming factors and curing factors.
Properties as acid-resisting bricks 2.2.1.
Mechanical strength As discussed before, the CS of the FAGP alters with the preparation factors.
Online since: November 2013
Authors: Guo Zhong Li, Juan Chen, Fu Xing Wang
The effect of some factors(dosage and grain size of recycled fine aggregate of construction waste, content of mineral admixture) on the properties of cement mortar was studied.
After crushing, RFA has some defects, such as high porosity, high water absorption, large crushing index[2].The mechanical properties of cement mortar specimens prepared by RFA is poor.
Ma Yiping[4]pointed out that the mechanical properties and durability of concrete mainly depended on the combination of aggregate-cement in ITZ.
The influence of some factors(dosage and grain size of RFA of construction waste, content of mineral admixture) on the combination property of ITZ and mechanical property in cement mortar was studied.
A B C Optimal combination 1 6.53 6.64 6.63 A2B2C3 2 7.19 7.31 6.67 3 6.45 6.46 7.02 range 0.74 0.85 0.39 Effect of different factors on compressive properties of samples Range result of 28d compressive strength is shown in Table 7.
After crushing, RFA has some defects, such as high porosity, high water absorption, large crushing index[2].The mechanical properties of cement mortar specimens prepared by RFA is poor.
Ma Yiping[4]pointed out that the mechanical properties and durability of concrete mainly depended on the combination of aggregate-cement in ITZ.
The influence of some factors(dosage and grain size of RFA of construction waste, content of mineral admixture) on the combination property of ITZ and mechanical property in cement mortar was studied.
A B C Optimal combination 1 6.53 6.64 6.63 A2B2C3 2 7.19 7.31 6.67 3 6.45 6.46 7.02 range 0.74 0.85 0.39 Effect of different factors on compressive properties of samples Range result of 28d compressive strength is shown in Table 7.
Effect of Overaging Temperature on the Mechanical Properties of Ultra-High Strength Multiphase Steel
Online since: May 2014
Authors: Zhen Zheng, Zhuang Li, Da Tong Qiu, Li Zhe Guo, Zhao Hua Li, Xin Gao, Tao Yu
Overaging temperature affects the mechanical properties of ultra-high strength multiphase steel due to microstructural evolution.
The purpose is to contribute to a better understanding of the factors governing the change in mechanical properties with overaging temperatures for HBDP steel.
The mechanical properties of the specimens were determined by tensile testing on an INSTRON 4206 machine.
Mechanical Properties after different Overaging Temperatures.
The mechanical properties were strongly affected by overaging temperatures.
The purpose is to contribute to a better understanding of the factors governing the change in mechanical properties with overaging temperatures for HBDP steel.
The mechanical properties of the specimens were determined by tensile testing on an INSTRON 4206 machine.
Mechanical Properties after different Overaging Temperatures.
The mechanical properties were strongly affected by overaging temperatures.
Online since: August 2010
Authors: Xin Cheng, Shi Feng Huang, Ya Mei Liu, Dong Yu Xu, Jun Chang
The
effects of ceramic volume fraction on the electrical properties of the composites were studied.
Meanwhile, it is not affected easily by environmental temperature and outside mechanical impact when used [4, 5].
The effects of P(MN)ZT ceramic volume fraction on the piezoelectric properties, dielectric properties and the electromechanical coupling properties etc were mainly studied
Results and discussion Piezoelectric properties.
Electromechanical coupling properties.
Meanwhile, it is not affected easily by environmental temperature and outside mechanical impact when used [4, 5].
The effects of P(MN)ZT ceramic volume fraction on the piezoelectric properties, dielectric properties and the electromechanical coupling properties etc were mainly studied
Results and discussion Piezoelectric properties.
Electromechanical coupling properties.
Online since: July 2014
Authors: Lam Suvarna Raju, A. Kumar, S. Rajendra Prasad
Keywords: Friction Stir Welding, Copper, Microstructure, Mechanical properties, Fractography.
The shape of the tool pin profiles influences the flow of plasticized material and affects weld properties .
Mechanical properties Mechanical properties such as tensile strength, yield strength, percentage of elongation, impact toughness and microhardness have been evaluated.
Table 1 shows the tensile properties for BM and mechanical properties of the copper welded joints.
Microstructural Factors Governing Hardness in Friction-Stir-Welds of Solid-Solution-Hardened Al Alloys.Metall.
The shape of the tool pin profiles influences the flow of plasticized material and affects weld properties .
Mechanical properties Mechanical properties such as tensile strength, yield strength, percentage of elongation, impact toughness and microhardness have been evaluated.
Table 1 shows the tensile properties for BM and mechanical properties of the copper welded joints.
Microstructural Factors Governing Hardness in Friction-Stir-Welds of Solid-Solution-Hardened Al Alloys.Metall.